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Subclass of:

138 - Pipes and tubular conduits

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
138141000 Bonded to each other 56
138149000 With intermediate insulation layer 44
138145000 Coated 33
138148000 Spaced 9
138153000 Reinforced 5
20110041947Composite Pipe and Method of Manufacture - A composite pipe is disclosed. The composite pipe includes a thermoplastic inner layer and a tape layer. The tape layer is exterior to and bonded with the thermoplastic inner layer. The composite pipe also includes a protective layer formed exterior to the tape layer.02-24-2011
20100288392HOSE - The invention relates to a hose with a tubular casing formed with a resin, preferably vinyl ester or polyester, as well as a method for using same. Cut-to-length glass fiber tubes are embedded in the resin forming the hose, and the length of the glass fiber tubes on both surfaces of the hose have values which are preset and different from one another.11-18-2010
20110290366Forming the End Portions of Fibre Reinforced Thermoplastic Composite Tubes - A method and apparatus for forming at least one external annular flange (12-01-2011
20120285575Movable factory for simultaneous mobile field manufacturing and installation of non-metallic pipe - Movable systems and methods for making pipe, e.g., non-metallic pipe, either for stand-alone use as produced or for use as a pipe liner, the pipe made at a site at which it is to be used; and, in certain aspects, a transportable factory for simultaneous mobile field manufacturing and installation for making pipe, e.g., reinforced thermoplastic composite pipe, either for stand-alone use or for use as a pipe liner, the pipe made, in one aspect, at a site of use of the pipe. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).11-15-2012
20120060961Tubes for High Temperature Industrial Application and Methods for Producing Same - A high temperature industrial plant metal alloy tube for use in high temperature industrial plant such as a reformer tube having lower creep comprises around the tube one or more layers of reinforcement material for example wire or mesh of a refractory material. A method of producing the tube and plant comprising the tube are also claimed.03-15-2012
138147000 With mechanical means to hold layers in contact 4
20110079314PIPE JACKET - A pipe jacket is disclosed for use with pipes such as hydrocarbon based liquid and gaseous high pressure oil pipelines. The pipe jacket exhibits ballistic self-sealing properties through the use of ballistic fabric surrounding a self-sealing core. The self-sealing core makes use of compressible polymers, which close back on themselves when a foreign object such as a bullet passes through to prevent most leakage, and a self-sealing fluid to fill in whatever space remains. The compressible polymers are kept under a pressure greater than the internal pipeline normal maximum operating pressure by a fastening system which securely fastens one end of the pipe jacket to the other after the pipe jacket is placed around the outside of the pipe. The pipe jacket may also optionally provide additional protection from blasts, electric drill sabotage, corrosion, and thermal variation.04-07-2011
20100163132INSULATING DEVICE FOR A MACHINE ELEMENT, IN PARTICULAR AN EXHAUST GAS PIPE - The invention relates to an insulating device containing a first machine element, in particular an exhaust gas pipe, and at least one second machine element, in particular an exhaust manifold, that is connected to said first machine element and through which, in particular, a hot medium can flow and being connected to a unit. The insulating device at least partially surrounds the machine element and is connected to the unit. The aim of the invention is to further develop the claimed insulating device with a low amount of production and material expenditure such that mounting and demounting can be carried out in a simple manner and can be adapted in a problem-free manner to various types of units. According to the invention, a base plate that is connected to the unit is provided, said base plate having at least two side parts that are arranged at a distance from each other forming an intermediate area, such that a sliding part is arranged in the intermediate area and is essentially sealingly connected the base plate and to the lateral parts by profiles and is detachably connected in relation to the base plate, such that said sliding part contains a recess through which the second machine element is guided, and also a cover that can be connected to the base plate by a detachable securing element, said cover engaging with the first machine element. The cover rests upon the lower edges thereof on associated areas of the lateral parts of the base plate and/or the sliding part(s).07-01-2010
20120261022THERMAL ISOLATION, SUITABLE FOR ISOLATING THE GAS DISCHARGE TUBE OF A REFRIGERATING COMPRESSOR, AND A PROCESS OF ASSEMBLING THE ISOLATION IN THE GAS DISCHARGE TUBE - The present invention relates to a thermal isolation, suitable for isolating the gas discharge tube (10-18-2012
20100229996METHOD AND APPARATUS FOR FORMING A LINED CONDUIT - A lined conduit formed by decorrugating a corrugated liner conduit inside a first conduit is described. A method and apparatus for forming the lined conduit are also described. The corrugated liner conduit may be positioned inside the first conduit. Each end portion of the corrugated liner conduit may be coupled to a hydraulic expander. Each hydraulic expander may include a hydraulic cylinder. Each hydraulic cylinder may include a piston rod with an opening along the length of the piston rod. The corrugated liner conduit may be evacuated through a valve assembly coupled to the passageway in one of the piston rods. The evacuated corrugated liner conduit may be pressurized with fluid from a fluid source coupled to the valve assembly. Pressurizing the corrugated liner conduit may expand corrugations in the corrugated liner conduit to form a decorrugated liner in the first conduit.09-16-2010
138150000 With spiral seam 1
20110114215COMPOSITE PIPES AND METHOD MAKING SAME - Reinforced composite pipes and methods for making the same, generally employ at least one polymeric reinforcement phase, typically provided as an intermediate form. The intermediate form is typically applied over a core pipe, and may be consolidated. An optional jacket may be employed.05-19-2011
138151000 With longitudinal seam 1
20120031520INSULATION ASSEMBLY FOR USE WITH AN AUXILIARY POWER UNIT HAVING AN EXHAUST MUFFLER - An insulation assembly for use with an APU having an exhaust muffler is disclosed herein. The insulation assembly includes, but is not limited to, a first insulating member that is configured for placement on a top portion of the exhaust muffler and a second insulating member attached to the first insulating member and configured for placement on a bottom portion of the exhaust muffler. The second insulating member is less resistant to heat transfer than the first insulating member.02-09-2012
Entries
DocumentTitleDate
20100071796Polyolefin multilayer pipe - Polyolefin multilayer pipes consisting at least one of the layers of a β-nucleated propylene homopolymer and/or β-nucleated copolymers from 90.0 to 99.9% by weight of propylene and 0.1 to 10.0% by weight of α-olefins. The pipes are to be classified in ring stiffness class ≧4. The pipes are suitable for non pressure pipe applications, preferably for outdoor use, for above as well as underground drainage and sewerage pipe systems, surface water pipes, pipes for cable protection, pipes for cold climate conditions and for indoor use, soil and waste water pipes.03-25-2010
20100116373Composite Pipe - A sleeved composite pipe or piling structure formed of an elongated polyethylene pipe or tube of high-density polyethylene (HDPE) or another polyethylene material installed over a substantially rigid and incompressible hollow metal pipe or solid wood core having an outer diameter that is the same or slightly larger than a normal inside diameter of the polyethylene pipe or tube when measured in a relaxed state at ambient temperature. The polyethylene pipe or tube is, for example, a HDPE 3408 material formed of virgin PE 3408 resin as specified in ASTM D3350 with UV protection, and the pipe is produced to ASTM A-3408. The metal pipe core can be ferrous or nonferrous pipe.05-13-2010
20130056108Method of Producing a Composite Pipe and Such a Composite Pipe - A composite pipe comprises a polyetheretherketone innermost pipe around which a reinforcing overwrap is arranged. A protective sheath surrounds the overwrap. Such a composite pipe may be made by selecting a polyetheretherketone pipe having an outer region having a crystallinity of less than 25%; overlaying the selected pipe with overwrap; and subjecting the combination to heat, thereby causing the crystallinity of the outer region of the polyetheretherketone pipe to increase. The method reduces the risk of pipe failure.03-07-2013
20120222771ON-SITE MANUFACTURING OF COMPOSITE PIPELINE - Systems and methods for onsite manufacture of a composite pipeline. In one embodiment, a method for constructing a pipeline includes arranging a plurality of sections of tubing at or near to a location where the pipeline is to be finally installed. An end of a first of the sections of tubing axially abuts an end of a second of the sections of tubing. The abutting ends of the first and second of the sections of tubing are joined. A continuous strip of material is wrapped in a helical pattern over the length of the joined first and second of the sections of tubing to form a pipeline segment.09-06-2012
20110011483CERAMIC-OVERMOULDING METHOD AND COMPOSITE ELEMENT OBTAINED BY THIS METHOD - A member of an element for feeding fluid and pasty products in cylinder or sleeve form, able to withstand high thermal transitions, comprises, arranged concentrically relative to each other, a part made of ceramic material (01-20-2011
20110011482WELL TUBINGS WITH POLYMER LINERS - The invention relates to well tubings, in particular oil well tubings, having an improved resistance to abrasion and corrosion. A well tubing comprises a plurality of tubing sections each having a bore and an inside diameter, wherein at least part of the tubing sections has polymer liners disposed within said bore of said tubing section, characterized in that said polymer liners are comprised of crosslinked polyethylene.01-20-2011
20120234426Steel Sheet Used to Manufacture Pipe and Having Corrosion-Resistant Properties Against Fuel Vapors, and Pipe and Fuel Supply Pipe That Use Same - Provided is a steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the steel sheet for manufacturing a pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on a surface of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of a pipe formed of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm. In a fuel supply pipe 09-20-2012
20110094612MULTILAYER TUBE FOR TRANSPORTING WATER OR GAS - The invention relates to a multilayer tube comprising (in the order from the inside to the outside of the tube), layers arranged one on top of the other: an optional layer L04-28-2011
20110284117FUEL COMPOSITIONS - A system comprising a liner at an interior of the pipe; at least one dry fiber tri-axial braid layer exterior to the liner, the tri-axial braid layer comprising a plurality of axial fibers, a plurality of clockwise fibers, and a plurality of counterclockwise fibers.11-24-2011
20110290364SEAMLESS COMPOSITE METAL TUBE AND METHOD OF MANUFACTURING THE SAME - A seamless composite metal tube comprises an inner layer (12-01-2011
20120097287DUCT ARRANGEMENT, DUCT EQUIPMENT, DUCT REINFORCEMENT CONSTRUCTION METHOD, SUPPORT REINFORCEMENT STRUCTURE, AND REINFORCEMENT STRUCTURE FOR SUPPORT FIXING UNIT - Provided is duct equipment including a duct body, a heat insulating material, a external cover, a fiber-reinforced sheet, and fiber-reinforced moldings. The duct body includes a duct wall, a duct passage defined by the duct wall, and duct corners formed in the duct wall when viewed in a cross-section in a direction intersecting a direction in which the duct passage extends. The heat insulating material is installed on an outer circumference of the duct body. The external cover includes a external cover wall installed on an outer circumference of the heat insulating material, and external cover corners formed alone the duct corners. The fiber-reinforced sheet is disposed on the outer circumference of the duct body via an adhesive layer. The fiber-reinforced moldings are disposed adjacent to the fiber-reinforced sheet along the external cover corners via adhesive layers, and have a substantially L-shape when viewed in the cross-section.04-26-2012
20100122747Composite Structures for Hydrogen Storage and Transfer - Compressed hydrogen gas can be stored and transferred in hollow structures with walls that include at least one layer or interlayer of at least one porous metal, the purpose of the latter being to protect one or more surrounding layers from the damage that can be caused by diffusive flux of hydrogen gas. The masses of hydrogen gas that enter the layer(s)/interlayer(s) of the porous metal(s) are continuously or periodically removed from the interconnected pore space in the layer(s)/interlayer(s) of the porous metal(s) to ensure that the pressure(s) of the hydrogen gas remain(s) low—generally less than or equal to one atmosphere. When the structure that holds compressed hydrogen gas is a cylindrical pressure vessel, pipe or pipeline, a manufacturing technique known as “C-forming” can be used to create a wall that contains at least one layer or interlayer of at least one porous metal.05-20-2010
20120031519MULTI-LAYER TUBE FOR AN AUTOMATIC TRANSMISSION - A multilayer tube for an automatic transmission, the multilayer tube comprising at least one layer of elastomeric material resistant to oils, in particular to DEXRON VI. Advantageously, the layer of elastomeric material is a mixture of CSM (polyethylene chlorosulphonate) and EVM in which the percentage ratio between EVM and CSM is comprised between 4:1 and 1:1.02-09-2012
20100282355MULTILAYER CONDUIT - A multi-layer conduit which can, for example, transport fuels, includes at least one blocking layer and one top layer. The blocking layer can include a thermoplastic fluoroelastomer and/or a thermoplastic fluoroelastomer vulcanisate. A tank filling device can include at least one filling nozzle in which the multi-layer conduit is provided.11-11-2010
20110220237BIMETALLIC TUBE - A bimetallic tube comprising a copper tube and a steel tube within the copper tube. The copper tube is drawn down such that the inside wall surface of the copper tube is in intimate contact with the outside wall surface of the steel tube, and the copper tube is annealed.09-15-2011
20100300572ENCASED PIPELINE - A pipeline laid trenchlessly and/or without a sand bed is produced using a metallic conduit which is encased with an extruded layer of a polyamide moulding material. In this way, the durability of the outer shell required for trenchless laying techniques without a sand bed is ensured.12-02-2010
20110000570STACKED CONDUIT ASSEMBLY AND SCREW FASTENING METHOD FOR CONDUIT PART - A stacked conduit assembly includes: a conduit part in which a plurality of plate-like parts are stacked and integrated, and a hollow conduit is formed in an inner layer; and a control board to be fastened to the conduit part by a screw. The plate-like parts include a plurality of plate-like parts that respectively form a side wall, an upper face, and a bottom face of the conduit, a pilot hole is formed in a plate-like part that forms the side wall of the conduit, and the screw is a tapping screw that taps by itself in the pilot hole and is fastened. Thus, a stacked conduit assembly that can stabilize a screw engagement state and realize downsizing or thinning of devices and cost reduction can be obtained.01-06-2011
20110120584LOW-NOISE PLASTIC INTERCOOLER PIPE HAVING MULTI-LAYERED STRUCTURE - The present invention provides a low-noise plastic intercooler pipe. In preferred embodiments, the present invention preferably provides a low-noise plastic intercooler pipe having a multi-layered structure including: a skin layer including a thermoplastic etherester elastomer (TEEE) and a soundproof core layer including glass bubbles.05-26-2011
20110209793HOT-COLD INLET PIPE STRUCTURE - An improved hot-cold inlet pipe structure includes an external-threaded pipe and an internal pipe forming an integrated piping structure. The internal pipe extends outwardly a wrapping section that covers a plurality of threaded openings of the external pipe. The internal pipe is composed of non-toxic materials that include plastic materials that are high resistance to pressure and climate change. The internal pipe also reduces the use of metallic materials and does not release of toxic chemical to water stream. A depressed section of the interior of a top of end of the inlet pipe includes a receiving chamber, the receiving chamber includes an opening that includes numerous slots. The slots receive a control valve unit such that the slots mesh with the control valve unit. This design is also beneficial in the manufacturing of the inlet pipe.09-01-2011
20110041945Automotive Exhaust Pipe - The present invention relates to an automotive exhaust pipe including: an exhaust pipe main body; and a metallic cylindrical body being inserted inside the exhaust pipe main body, having openings at an open area ratio of 95% or smaller, and having a thickness of 3 mm or smaller.02-24-2011
20110041944ENERGY DISSIPATIVE TUBES AND METHODS OF FABRICATING AND INSTALLING THE SAME - Energy dissipative tubes are provided, along with methods of fabricating and installing the energy dissipating tubes. An energy dissipative tube can include a length of tubing, a first resin layer surrounding the outside of the tubing, an expanded metal foil adjacent to the outside of the first resin layer, and a second resin layer surrounding the expanded metal foil and the first resin layer. Another energy dissipative tube can include a length of tubing, a conductive layer adjacent to the outside of the tubing, and an insulative layer adjacent to the conductive layer. A further energy dissipative tube can include a length of tubing, a metal layer adjacent to the outside of the tubing, and a resin layer adjacent to the metal layer.02-24-2011
20110088805HEAT INSULATOR SUITABLE FOR A VEHICLE EXHAUST PIPE - A heat insulator is wound around an outer periphery of a vehicle exhaust pipe. The heat insulator comprises a deformable sheet-shaped heat insulating material hermetically encased in a reduced pressure state in a bag member comprised of heat-resistant metal foil.04-21-2011
20120145276PIPELINE WITH AN INTERNAL CORROSION RESISTANT METAL COATING - A pipeline comprising an outer steel pipe and an internal corrosion resistant covering adhesively joined to the inside of the steel pipe. The pipeline can be taken up onto a drum and later unwound and laid out without any observed deformation of the metal covering. A method for the manufacturing of the pipeline comprises the steps of applying an adhesive onto the outside of the metal covering and optionally also onto the inside of the steel pipe, inserting the metal covering into the pipe and expanding the covering until being in a good contact with the inside of the steel pipe, and curing the adhesive to make the metal covering adhere tightly to the inside of the steel pipe.06-14-2012
20110186170REFRIGERANT HOSE - An object of the present invention is to provide a hose which has a gas barrier layer and a rubber layer adhered without using an adhesive, and which has a dramatically improved durability compared to the conventional hose. The hose of the present invention is a refrigerant hose having an inner layer comprising a gas barrier layer and a rubber layer adhered to the outer surface of the gas barrier layer. The gas barrier layer comprises a modified polyamide prepared by blending a polyamide and a carboxyl group-containing modified polyolefin, and the rubber layer comprises a rubber composition prepared by blending a particular amount of an alkylphenol formaldehyde resin and a particular amount of carbon black with a raw rubber. The raw rubber comprises a BIMS, a copolymer rubber which is a butyl rubber and/or a halogenated butyl rubber, and an EPDM, the carbon black is specified, and no adhesive layer is formed between the gas barrier layer and the rubber layer.08-04-2011
20120037257TUBULAR STRUCTURE - A tubular structure having a multi-layer, strength-enhanced first end segment, a multi-layer, strength-enhanced second end segment, and a flexible segment intermediate said multi-layer strength-enhanced first end segment and said multi-layer, strength-enhanced second end segment is provided. Methods for manufacturing tubular structures are also provided.02-16-2012
20110048568Nano or sub-nano FIR and anion fuel pipes for motor vehicles and ships - A fuel pipe that is made from nano or sub-nano plastic or rubber materials and can be used for motor vehicles and ships includes a nano or sub-nano Far Infrared Ray (FIR) and anion carrier. The structures of the carrier are made up of nano or sub-nano tourmaline granules integrated into the carrier body made from general, nano, or sub-nano plastic, rubber, resin, or metal materials. The carrier can be the whole body, interior or exterior wall, or paste structures set on the inner or outer wall surface of the pipe. The carrier can reach a far infrared emission rate up to 96% from ˜85% by general tourmaline materials and facilitate sufficient combustion by breaking fuel molecular group into pieces. As a result, the novel pipe can achieve an extra 12-percent fuel economy improvement. The percentage of toxic gas in the exhaust will be correspondingly reduced.03-03-2011
20120204992WATER PIPE FOR WHICH HYDROFORMING IS EMPLOYED, AND A PRODUCTION METHOD THEREFOR - Disclosed are a double water pipe manufactured via hydroforming and a method of manufacturing the same via hydroforming The method includes (a) inserting an inner pipe into an outer pipe made of steel, the inner pipe being made of a corrosion resistant material selected from among stainless steel, titanium and aluminum, and having a smaller outer diameter than an inner diameter of the outer pipe; (b) placing the outer pipe on a die unit and sealing opposite ends of the die unit with sealing members each having a through-hole connected to a fluid supply unit for supplying a fluid to the inner pipe; (c) supplying the fluid to the inner pipe to perform plastic expansion of the inner pipe and elastic expansion of the outer pipe; and (d) discharging the fluid from the inner pipe to allow frictional coupling between the inner pipe and the outer pipe through elastic restoration of the outer pipe.08-16-2012
20110094613Pipe for Transporting a Medium and Method for Manufacturing a Pipeline - A pipeline has a first pipe and a second pipe welded together by a weld seam, wherein the first and second pipes each have an inner side with a lining section of plastic material for protecting an inner side of the pipeline. The lining sections end at a spacing from the weld seam. The lining section of the first pipe abuts the lining section of the second pipe such that by an undercut provided on at least one of the lining sections a fill space is formed in a circumferential direction of the pipeline.04-28-2011
20120152396PRESSURE CAST CONCRETE OR MORTAR LINED STEEL PIPES AND METHODS OF MAKING THE SAME - Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.06-21-2012
20110000571AUTOMOTIVE FUEL HOSE - An automotive fuel hose is disclosed including an inner layer, a lower fuel permeability layer and an outer layer provided in this order on an outer peripheral surface of an innermost layer of a fluororesin. The inner layer and the outer layer each include of an amine-modified polyamide resin, where the lower fuel permeability layer is a resin composition including the following components: (A) a polyphenylenesulfide resin as a major component; (B) an acid-modified polyolefin resin; (C) an unmodified polyolefin resin; and (D) an epoxy resin. The proportion of the component (B) in the resin composition is 4 to 12 wt % and the proportion of the component (C) in the resin composition is 4 to 12 wt %, wherein the proportion of the component (D) in the resin composition is 1.5 to 5 wt %.01-06-2011
20110180174INSULATOR AND EXHAUST SYSTEM OF INTERNAL-COMBUSTION ENGINE - An insulator having an inner surface for covering an exhaust system of an internal-combustion engine includes a cover member having a surface, a joint member formed on the surface of the cover member, and a mat member made of material including at least one of ceramic fibers and glass fibers, the mat member being attached to the cover member through binding of the fibers to the joint member, and the mat member being exposed to form the inner surface.07-28-2011
20120211117WATER RESISTANT ADJUSTABLE JACKETS FOR INSULATED PIPE AND PIPE BENDS - An adjustable jacket for an insulated conduit is provided, the adjustable includes inner and outer surface, first and second axial ends, and first and second longitudinal ends that each extends between the first and second axial ends. The first and second longitudinal ends form a longitudinal seal, which includes an outer seal formed by a terminal edge of one of the first and second longitudinal ends in contact with the outer surface of the adjustable jacket, and an inner seal formed by a terminal edge of another one of the first and second longitudinal ends in contact with the inner surface of the adjustable jacket.08-23-2012
20120180897REFRIGERANT LINE - A refrigerant line for carrying a mixture of refrigerant and lubrication oil. The line includes an inner casing made of a material impermeable to the refrigerant/oil mixture, an outer casing made of a material that is highly permeable to the refrigerant in its gaseous state, and an intermediate layer between the inner and outer casings made of a material that is high permeable to the gaseous refrigerant but that is able to retain the admixed oil. In this way, any oil contained in a refrigerant/oil mixture leaking through the inner casing is retained by the intermediate layer, while the refrigerant gas is allowed to escape through the outer two layers. The intermediate layer may retain the oil by absorption, by adsorption, or by binding of the oil.07-19-2012
20120186685High Altitude structures and related methods - A system and method is described generally for providing a high altitude conduit the high altitude conduit includes a first material layer forming an elongated duct. The high altitude conduit also includes a second material layer outside the first material layer. The second material layer defines a space between the second material layer and the first material layer. A gas has a density that is less dense than that of the atmosphere outside of the second material layer. The gas is disposed in the space between the first and the second layer. An introducer is configured to provide the gas into the space between the first material layer and the second material layer. The gas causes the conduit to extend in an approximately upright orientation.07-26-2012
20110120586DOWNHOLE RECOVERY PRODUCTION TUBE SYSTEM - A coiled tubing system may comprise a first continuous length of coiled tubing and a second continuous length of coiled tubing, the first continuous length of coiled tubing having a larger diameter than the second continuous length of coiled tubing, the second continuous length of coiled tubing being embedded within the inner diameter of the first continuous length of coiled tubing.05-26-2011
20110120585MULTILAYERED TUBE AND MANUFACTURING METHOD THEREOF BASED ON HIGH PRESSURE TUBE HYDROFORMING - Disclosed is a method of manufacturing a multilayered tube, including: preparing an outer tube, an inner tube having an outer diameter of 95˜98% of an inner diameter of the outer tube, and dies with a shaping void having a diameter of 100.20˜100.30% of an outer diameter of the outer tube; mounting the outer tube on the shaping void, with the inner tube inserted into the outer tube; plastically expanding the inner tube to be brought into contact with the outer tube by injecting a fluid into the inner tube until a pressure of the fluid reaches a first forming pressure inside the inner tube; elastically expanding the outer tube to be brought into contact with the shaping void by increasing the pressure of the fluid until the pressure of the fluid reaches a second forming pressure inside the inner tube; and elastically recovering the outer tube to allow the outer tube and the inner tube to be coupled to each other by removing the fluid from the inner tube, wherein the first forming pressure is in the range of 10˜20% of yield strength of the inner tube, and the second forming pressure is in the range of 10˜20% of yield strength of the outer tube and is maintained for 2˜3 seconds.05-26-2011
20120125471Water Pipe Structure - A water pipe structure includes an inner water pipe, and a protective layer mounted on and combined with the inner water pipe to cover an outer periphery of the inner water pipe. The inner water pipe has an outer side provided with at least one extension wing which extends outwardly from the inner water pipe. Thus, the protective layer encompasses the outer periphery of the inner water pipe to protect the inner water pipe.05-24-2012
20120298247MULTILAYERED RESIN TUBE-SHAPED BODY - Provided is an economical multilayered resin tube-shaped body that can be safely used in a high-temperature environment such as an engine compartment. A multilayered resin tube-shaped body (11-29-2012
20120279606INTERNALLY INSULATED RIGID EXHAUST SYSTEM AND METHOD FOR MAKING SAME - An internally insulated rigid exhaust system conduit and method for making the same are provided. The conduit includes an outer rigid tube, a generally flexible inner portion positioned within the outer tube and an insulation layer positioned therebetween. The conduit may include one or more bends or curves. Due to the flexibility of the inner portion and insulation, a gap defined between the inner portion and outer tube may be generally uniform in width even after the bending of the outer tube. During the manufacturing process, the inner portion is wrapped with a blanket or sleeve of insulation material to form a wrapped subassembly and then inserted into the outer tube. The insertion of the wrapped subassembly may occur either before or after a bending of the outer tube. The insulation may also be blown into the gap defined between the inner portion and outer tube.11-08-2012
20110277866Apparatus and Method For Sealing A Ventilation Channel of A Pipe - A method of sealing a ventilation channel for a pipe is disclosed. The method includes inserting a sealing insert into a ventilation hole of the ventilation channel, applying rotational energy to the sealing insert, deactivating the rotational energy to the sealing insert once the sealing insert reaches a threshold position, and separating a first portion of the sealing insert being inserted in the ventilation channel from a second portion of the sealing insert.11-17-2011
20130112309Tubular Composite Strut Having Internal Stiffening and Method for Making the Same - A strut comprises a substantially hollow composite tube. A fitting on each end of the tube adapts the strut for attachment to a structure. The tube is stiffened by at least one pair of opposing stiffeners.05-09-2013
20130126032MULTILAYER TUBES - The invention relates to a multilayer tube product comprising inner and outer plastic, or polymer, layers and an intermediate metallic layer characterized in that the intermediate metallic layer comprises an aluminium sheet having the composition (values in weight %):05-23-2013
20100307627MULTI-LAYER CYLINDRICAL MOLDED ARTICLE - The present disclosure provides a highly heat-resistant multilayer molded article having excellent adhesion between layers and which can be inexpensively produced and easily recycled. The multilayer molded article includes an innermost layer having a first polyarylene sulfide-derived resin composition including 95% to 80% by mass of a polyarylene sulfide-derived resin and 5% to 20% by mass of an olefinic (olefine-derived) elastomer, and an outer layer disposed on an outer-side of the innermost layer, including a second polyarylene sulfide-derived resin composition having 5 to 35 parts by mass of reinforced fibers relative to 100 parts by mass of the first polyarylene sulfide resin composition.12-09-2010
20100307626MULTI-LAYERED COEXTRUDED TUBE - Multi-layered co-extruded tubes are provided that include an outer layer including a first semiaromatic semicrystalline polyamide having a melt temperature of about 240° C. to 280° C., and a thermal stabilizer; and an inner layer including a second semiaromatic semicrystalline polyamide having a glass transition equal to or greater than 100° C.12-09-2010
20100307625MULTI-LAYERED COEXTRUDED TUBE - Multi-layered co-extruded tubes are provided that include an outer layer including a first semiaromatic semicrystalline polyamide having a melt temperature of about 240° C. to 280° C., and a thermal stabilizer; and an inner layer including a second semiaromatic semicrystalline polyamide having a glass transition equal to or greater than 100° C.12-09-2010
20120273084STORAGE FILM - A storage bag for perishable articles includes an unperforated outer layer, an unperforated inner layer, and an intermediate layer disposed between the outer and inner layers. The intermediate layers includes a solventless adhesive mixed with a volatile antimicrobial. In addition, the outer and inner layers are oxygen permeable, and the inner layer has a greater permeability than the outer layer.11-01-2012
20120273083HOSE ASSEMBLY - A hose assembly includes an inner tube and an outer cover wrapping around the inner tube. The inner tube has a plurality of inner ribs disposed on an interior surface thereof, a plurality of outer ribs disposed on an exterior surface thereof and a plurality of orifices defined therethrough. The inner ribs and the outer ribs are longitudinally or spirally extended on the surfaces of the inner tube. The outer cover is sewed to form a seam. The seam includes a plurality of holes allowing water to pass through. The outer cover is made of a water-resistant material. Therefore, the water flowing in the inner tube passes through the orifices of the inner tube and the holes of the seam to water the plants.11-01-2012
20130180616Double Pipe and Coupling Structure for the Pipe - When the common part of the outer pipe and the inner pipe is worked with the pressing-type punching-out work for connecting with the inner pipe, there occurs no possibility that any disadvantage caused by the punched-out debris is generated.07-18-2013
20130186503Corrosion mitigation system and method - A corrosion mitigation system for use in a pressurized pipeline for carrying pressurized fluids utilizes a plurality of metal pipes to form a pressurized pipeline wherein each pipe comprises connectors on opposite ends. The connectors comprise metallic connector components. Insulative material components which mate to said metallic connector components at said connections between said plurality of metal pipes for insulating the connectors and which conforms to respective ends of said plurality of metal pipes while permitting sufficient connection force at said connections to prevent leakage of said pressurized fluids.07-25-2013
20120018027UNDERWATER CONDUIT FOR FLUID TRANSPORT - A pipe for underwater transportation of fluid is indicated which includes a pressure-tight metal inner pipe for conducting the fluid, wherein for its stabilization in radial direction at least one profiled metal strand and for stabilizing in the axial direction at least one tension-proof strand are wound around the inner pipe. The inner pipe (1) is a metal pipe which is undulated transversely of its longitudinal direction and which for stabilization in the radial direction is surrounded by at least one first radial reinforcement (3) which is composed of a profiled helically extending profile strip whose windings are placed closely next to each other or engage each other and are hooked together. Arranged around the first radial reinforcement (3) is arranged a metal pipe undulated transversely of its longitudinal direction as the outer pipe (5); at least two layers of tension-proof strands (7, 8) are wound around the outer pipe (5), preferably with oppositely directed pitch.01-26-2012
20130199656Thermally Resistant Convoluted Sleeve and Method of Construction Thereof - A thermally insulative, reflective convoluted sleeve and method of construction thereof is provided. The sleeve includes a resilient inner layer, an outer layer and a resilient intermediate layer sandwiched between the inner and outer layers. The inner layer has an inner surface exposed to an inner cavity of the sleeve and the outer layer has an outer reflective surface exposed to the surrounding environment. The intermediate layer is an impervious sheet material and is sandwiched in abutment with the inner and outer layers. The inner, outer and intermediate layers are convoluted to provide the sleeve with enhanced thermal protection properties and flexibility.08-08-2013
20130199657STEEL PLATE FOR PRODUCING PIPE HIGHLY RESISTANT TO FUEL VAPOR CORROSION, PIPE USING SAME AND METHOD FOR PRODUCING PIPE - Provided are a pipe which exhibits corrosion resistance against vapor of fuel such as gasoline, diesel oil, bioethanol or a biodiesel fuel, a method for manufacturing the pipe, and a steel sheet for manufacturing the pipe. A method for manufacturing a pipe having a bent portion which has excellent corrosion resistance against fuel vapor includes the steps of; preparing a steel sheet for manufacturing a pipe which is characterized by having a zinc-nickel (Zn—Ni) alloy layer where a nickel content is 4 to 16 at % on at least one surface of the steel sheet; forming the steel sheet for manufacturing a pipe into a tubular shape such that the Zn—Ni alloy layer forms an inner surface of the pipe, and applying bending to the pipe such that the elongation of the bent convex portion generated at the time of bending the pipe falls within 20%. A steel sheet for manufacturing a pipe having excellent corrosion resistance against fuel vapor has a Zn—Ni alloy layer on at least an uppermost surface of a surface thereof which constitutes an inner surface of the pipe, and a nickel content in the Zn—Ni alloy layer is 4 to 16 at %.08-08-2013

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